Well-insulated ducts operate at steady state with parameters as shown. The pressure is about 1 atm everywhere. Ignore potential and kinetic energy effects, take the dead state as 14.7 psi and 540°R, and assume ideal gas model for air with c, = 0.24 Btu/lb.°R. 2. I What are the mass flow rates for each state (1, 2, and 3), in lb/min? i What is the exit temperature, T3, in °F? 0] Find the rate of entropy production within the duct, in Btu/min-°R. a. b. c. d. Find the rate of exergy destruction within the duct during this process, in Btu/min. D = 4 ft V = 400 ft/min T = 80°F 3 V3 = 400 ft/min T3 = ? D3 = ? 2 (AV), = 2000 ft/min Vz = 600 ft/min T = 40°F Insulation Page 2 of 3

Well-insulated ducts operate at steady state with parameters as shown. The pressure is about 1 atm everywhere. Ignore potential and kinetic energy effects, take the dead state as 14.7 psi and 540°R, and assume ideal gas model for air with c, = 0.24 Btu/lb.°R. 2. I What are the mass flow rates for each state (1, 2, and 3), in lb/min? i What is the exit temperature, T3, in °F? 0] Find the rate of entropy production within the duct, in Btu/min-°R. a. b. c. d. Find the rate of exergy destruction within the duct during this process, in Btu/min. D = 4 ft V = 400 ft/min T = 80°F 3 V3 = 400 ft/min T3 = ? D3 = ? 2 (AV), = 2000 ft/min Vz = 600 ft/min T = 40°F Insulation Page 2 of 3

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: For a closed system undergoing a thermodynamic cycle,

A: For a closed system undergoing a thermodynamic cycle

Q: DEFINE SOME STEADY-FLOW ENGINEERING DEVICES

A: Steady-flow engineering devices are given below: Nozzle: The nozzle is a device which is to enhance…

Q: A closed system undergoes a thermodynamic cycle with 2 steps: process 1-2 (from state 1 to state 2),…

Q: The Second Law of Thermodynamics: Kelvin–Planck Statement

A: It is not possible for any device which can operate in a cycle to receive heat from a single…

Q: A 35 lb object is subjected to an applied upward force of 20 lbf. The only other force acting on the…

A: Given data: mass = 35 lb g = 32.2 ft/s2 Need to determine the weight of the object.

Q: 5. The wall of an oven consists of a 0.25-inch-thick layer of steel with a thermal conductivity of…

Q: An oil pump operating at steady state delivers oil at a rate of 10 lb/s through a 1-in.-diameter…

Q: Describe the three main types of thermodynamic systems? provide an example on each system Гуре? What…

Q: An oil pump operating at steady state delivers oil at a rate of 10 lb/s through a 1-in.-diameter…

Q: The stored energy of a fluid in a closed system changes from 500 to 440 Btu/lbm while the fluid…

Q: Thermodynamics explain the application of the first law of thermodynamics to appropriate systems

Q: match the correct descriptions to the corresponding Thermodynamic laws:

A: The first law of Thermodynamics is A. During an interaction, energy can change from one form to…

Q: What is thermodynamics?

A: Thermodynamics is the branch of science which deals with the relation between the heat and other…

Q: A composite plane wall consists of a 4-in.-thick layer of insulation (ks = 0.029 Btu/h ft °R) and a…

Q: The figure below and the accompanying table provide the schematic and steady-state operating data…

Q: Describe the application of the first law of thermodynamics to Refrigeration industrial system by1)…

A: The First Law of Thermodynamics in Refrigeration SystemsThe first law of thermodynamics states that…

Q: A closed system undergoes a thermodynamic cycle with three steps: process 1-2 (from state 1 to state…

Q: Examine the performance of engineering devices in light of the second law of thermodynamics.

A: Second law of thermodynamics is states that it is impossible to convert the given amount of low…

Q: Air expands through a turbine operating at steady state. At the inlet, p₁ = 150 lbf/in.2, T₁ =…

Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

Thermodynamics

2.
Well-insulated ducts operate at steady state with parameters as shown. The pressure is about 1
atm everywhere. Ignore potential and kinetic energy effects, take the dead state as 14.7 psi and
540°R, and assume ideal gas model for air with c, = 0.24 Btu/lb.°R.
a.
0I What are the mass flow rates for each state (1, 2, and 3), in lb/min?
b.
What is the exit temperature, T3, in °F?
0] Find the rate of entropy production within the duct, in Btu/min-°R.
d. Find the rate of exergy destruction within the duct during this process, in Btu/min.
C.
D = 4 ft
V = 400 ft/min
T = 80°F
V3 = 400 ft/min
T3 = ?
D3 = ?
Insulation
(AV), = 2000 ft³/min
V, = 600 ft/min
T, = 40°F
Page 2 of 3

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 8 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

5. thermodynamics
7. thermodynamics
mechanical principles Examine devices which function to store mechanical energy in their operation.
1. Compared to gasoline, hydrogen has (A) higher energy density per unit volume and per unit mass (B) higher energy density per unit volume but lower energy density per unit mass density per unit mass (C) lower energy density per unit volume but higher energy (D) lower energy density per unit volume and per unit mass 2. A new hydroelectric power plant proposed for the Mississippi River near St. Louis is advertised as "delivering 438,000 megawatt-hours of renewable electricity to the region annually". What is the average power output of the plant? (A) 50 MW (B) 1.2 GW (C) 438 GW (D) 438 MW 3. A car accelerates from 0 to 60 miles/hour in 6 seconds. What is a good estimate of the power output of the engine? (A) the mass of the car divided by 60 miles (B) the chemical energy of the gasoline consumed during the acceleration (C) the thermal energy produced by the engine during the acceleration (D) the final kinetic energy of the car divided by 6 seconds
6 thermodynamics
6. thermodynamics
Differentiate zeroth, first, and second law of thermodynamics
4.5 thermodynamics
Derive the seven general property equation of the following thermodynamics processes: a. POLYTROPIC PROCESS
8. thermodynamics
What is the thermodynamic system? Explain in detail taking two examples.
What is the difference between an open control volume system and a closed isolated system? Please explain in thermodynamics terms. Thank you!